Case

Yuxin Yuntong: Breaking Through the "Certification Barrier" for U.S. Clients, Fully Promoting NFRC Certification to Achieve Win-Win Cooperation.

This system window was designed for a client's office building. To meet the client's specific market needs, a micro-ventilation design was introduced.

This is an order of custom system windows that will be shipped to the United States. The main products used are aluminum doors, and aluminum glass fixed windows.

With a total construction area of 150,000 square meters, it has 120 households, mainly with 140-200㎡ three-bedroom units. The community is adjacent to the main urban road. When ordinary broken bridge aluminum doors and windows were used in the early stage, the indoor noise during the day reached 65 decibels (far exceeding the national standard of 55 decibels), and the owner complaint rate accounted for 30% of the house acceptance problems. In addition, some units face severe westward exposure and high indoor temperatures in summer.

Comprehensive commercial plaza (integrating shopping, office, and catering, with a total floor area of 80,000 square meters). 15-story building (1-5 floors for retail, 6-15 floors for office), with a glass curtain wall area of 12,000 square meters and 320 sets of entrance doors and office windows. Project manager of the property development company (focusing on energy efficiency, durability, and compliance with green building standards). The initial design used ordinary single-layer glass curtain walls, resulting in serious heat loss in winter (indoor temperature fluctuation up to 8℃) and excessive heat gain in summer, leading to a 35% higher air-conditioning load than the industry average. Additionally, the metal frames of the original doors were prone to corrosion, requiring replacement every 3-5 years. High operational energy costs (estimated annual air-conditioning expenses exceeding $150,000) and frequent maintenance, which would affect the plaza's competitiveness in attracting high-end tenants.

5-star luxury hotel located in the downtown area, adjacent to a busy nightlife district, with 300 guest rooms and 5 conference halls. 20-story building with a total construction area of 55,000 square meters; the original windows and entrance doors had been in use for 10 years. The old single-pane windows failed to block street noise (indoor noise reached 58 dB at night), leading to frequent complaints from guests about poor sleep quality. The manual entrance doors caused inconvenience for guests with luggage, and the inadequate sealing resulted in 25% more heating/cooling energy consumption than similar hotels. Negative online reviews (accounting for 40% of total reviews) affected occupancy rates, which were 10% lower than the city's 5-star hotel average. Annual energy bills exceeded $90,000 due to inefficient insulation.